A versatile route to red??emitting Carbopyronine dyes for optical microscopy and nanoscopy

…, B Harke, M Leutenegger, C Eggeling…

Index: Kolmakov, Kirill; Belov, Vladimir N.; Wurm, Christian A.; Harke, Benjamin; Leutenegger, Marcel; Eggeling, Christian; Hell, Stefan W. European Journal of Organic Chemistry, 2010 , # 19 p. 3593 - 3610

Full Text: HTML

Citation Number: 31

Abstract

Abstract Biological microscopy favors photostable fluorescent markers with large fluorescence quantum yields, low dark triplet state population, good biocompatibility and absorption and emission maxima in the near-infrared, where cellular autofluorescence is minimized. In the present study, carbopyronines absorbing around 640 nm and emitting at around 660 nm, with a low intersystem crossing rate (k isc≈ 0.5× 10 6 s–1) and excellent ...